<?php

class Img
{
    const FILE_HEADER = [
        "FFD8FFE1" => "jpg",
        "89504E47" => "png",
        "47494638" => "gif",
        "FFD8FFE000104A46" => "jpeg",
        "424D" => "bmp",
    ];

    const GIF_2_WEBP = '%s %s -q %d -mt -o %s';
    const COM_2_WEBP = '%s %s -lossless -exact -q %d -mt -o %s';
    const JPG_COMPRESSION = "%s -strip -quality 75 '%s' %s";
    const PNG_COMPRESSION = "%s -strip -quality 75 '%s' %s";
    const GIF_COMPRESSION = "%s %s -strip -fuzz 5 -layers Optimize %s";

    public static function getType($oriFile): ?string
    {
        $fp = fopen($oriFile, 'rb');
        $bytes = fread($fp, 15);
        foreach (self::FILE_HEADER as $header => $ext) {
            $byteLen = strlen(pack("H*", $header));
            $tin = substr($bytes, 0, (int)$byteLen);
            $arr = unpack("H*", $tin);
            if (strtolower($header) == strtolower(array_shift($arr))) {
                return $ext;
            }
        }
        return null;
    }

    protected static function extracted($img, $oriFile, $toFile): void
    {
        list($width, $height, $mineType, $attr) = getimagesize($oriFile);
        $imageThump = imagecreatetruecolor($width, $height);
        imagecopyresampled($imageThump, $img, 0, 0, 0, 0, $width, $height, $width, $height);
        imagedestroy($img);
        imagejpeg($imageThump, $toFile, 75);
    }

    public static function compressionJpgForGd($oriFile, $toFile)
    {
        $img = imagecreatefromjpeg($oriFile);
        self::extracted($img, $oriFile, $toFile);
    }

    public static function compressionJpegForGd($oriFile, $toFile)
    {
        $img = imagecreatefromjpeg($oriFile);
        self::extracted($img, $oriFile, $toFile);
    }

    public static function compressionBmpForGd($oriFile, $toFile)
    {
        $img = imagecreatefrombmp($oriFile);
        self::extracted($img, $oriFile, $toFile);
    }

    public static function compressionPngForGd($oriFile, $toFile)
    {
        $img = imagecreatefrompng($oriFile);
        list($width, $height, $mineType, $attr) = getimagesize($oriFile);
        $imageThump = imagecreatetruecolor($width, $height);

        $white = imagecolorallocate($imageThump, 255, 255, 255);
        imagefill($imageThump, 0, 0, $white);
        imagecolortransparent($imageThump, $white);

        imagecopyresampled($imageThump, $img, 0, 0, 0, 0, $width, $height, $width, $height);
        imagedestroy($img);
        imagejpeg($imageThump, $toFile, 75);
    }

    /**
     * @url https://developers.google.com/speed/webp/docs/cwebp
     * @url https://developers.google.com/speed/webp/docs/gif2webp
     */
    public static function jpg2Webp($cwebp, $oriFile, $toFile): bool
    {
        $cmd = sprintf(self::COM_2_WEBP, $cwebp, $oriFile, 100, $toFile);
        exec($cmd, $log, $status);
        return !$status;
    }

    public static function png2Webp($cwebp, $oriFile, $toFile): bool
    {
        $cmd = sprintf(self::COM_2_WEBP, $cwebp, $oriFile, 100, $toFile);
        echo $cmd . PHP_EOL;
        exec($cmd, $log, $status);
        return !$status;
    }

    public static function gif2Webp($gif2Webp, $oriFile, $toFile): bool
    {
        $cmd = sprintf(self::GIF_2_WEBP, $gif2Webp, $oriFile, 75, $toFile);
        echo $cmd.PHP_EOL;
        exec($cmd, $log, $status);
        return !$status;
    }

    /**
     * @url https://imagemagick.org/script/download.php#macosx
     */
    public static function compressionJpgForMagick($magick, $oriFile, $toFile): bool
    {
        $cmd = sprintf(self::JPG_COMPRESSION, $magick, $oriFile, $toFile);
        echo $cmd . PHP_EOL;
        exec($cmd, $log, $status);
        return !$status;
    }

    public static function compressionJpegForMagick($magick, $oriFile, $toFile): bool
    {
        $cmd = sprintf(self::JPG_COMPRESSION, $magick, $oriFile, $toFile);
        echo $cmd . PHP_EOL;
        exec($cmd, $log, $status);
        return !$status;
    }

    public static function compressionBmpForMagick($magick, $oriFile, $toFile): bool
    {
        $cmd = sprintf(self::JPG_COMPRESSION, $magick, $oriFile, $toFile);
        echo $cmd . PHP_EOL;
        exec($cmd, $log, $status);
        return !$status;
    }

    public static function compressionPngForMagick($magick, $oriFile, $toFile): bool
    {
        $cmd = sprintf(self::PNG_COMPRESSION, $magick, $oriFile, $toFile);
        echo $cmd . PHP_EOL;
        exec($cmd, $log, $status);
        return !$status;
    }

    public static function compressionGifForMagick($magick, $oriFile, $toFile): bool
    {
        $cmd = sprintf(self::GIF_COMPRESSION, $magick, $oriFile, $toFile);
        echo $cmd . PHP_EOL;
        exec($cmd, $log, $status);
        return !$status;
    }
}

/**
 * @url https://github.com/pkuoliver/EasyAES
 */
class Aes
{
    private $key;
    private $iv;

    public function __construct($key, $iv)
    {
        $this->key = hash('MD5', $key, true);
        $this->iv = hash('MD5', $iv, true);
    }

    public function encrypt($data): string
    {
        return base64_encode(openssl_encrypt($data, 'AES-128-CBC', $this->key, OPENSSL_RAW_DATA, $this->iv));
    }

    public function decrypt($encData)
    {
        return openssl_decrypt(base64_decode($encData), 'AES-128-CBC', $this->key, OPENSSL_RAW_DATA, $this->iv);
    }
}

$arr = [
    '1.bmp',
    '1.gif',
    '1.jpeg',
    '1.jpg',
    '1.png',
    '2.gif',
    '2.jpg',
    '2.png',
    '3.jpg',
    '3.png',
];
/*foreach ($arr as $k => $v) {
    $oriFile = './cccc/' . $v;
    $type = Img::getType($oriFile);
    switch ($type) {
        case 'bmp':
            $toFile = './cccc1/' . $k . '.jpg';
            $toFile2 = './cccc2/' . $k . '.jpg';
            Img::compressionBmpForGd($oriFile, $toFile);
            Img::compressionBmpForMagick('convert', $oriFile, $toFile2);
            Img::jpg2Webp('cwebp', $toFile2, $toFile2 . '.webp');
            break;
        case 'jpg':
            $toFile = './cccc1/' . $k . '.jpg';
            $toFile2 = './cccc2/' . $k . '.jpg';
            Img::compressionJpgForGd($oriFile, $toFile);
            Img::compressionJpgForMagick('convert', $oriFile, $toFile2);
            Img::jpg2Webp('cwebp', $toFile2, $toFile2 . '.webp');
            break;
        case 'jpeg':
            $toFile = './cccc1/' . $k . '.jpg';
            $toFile2 = './cccc2/' . $k . '.jpg';
            Img::compressionJpegForGd($oriFile, $toFile);
            Img::compressionJpegForMagick('convert', $oriFile, $toFile2);
            Img::jpg2Webp('cwebp', $toFile2, $toFile2 . '.webp');
            break;
        case 'gif':
            $toFile = './cccc1/' . $k . '.gif';
            $toFile2 = './cccc2/' . $k . '.gif';
            Img::compressionGifForMagick('convert', $oriFile, $toFile2);
            Img::gif2Webp('gif2webp', $toFile2, $toFile2 . '.webp');
            break;
        case 'png':
            $toFile = './cccc1/' . $k . '.png';
            $toFile2 = './cccc2/' . $k . '.png';
            Img::compressionPngForGd($oriFile, $toFile);
            Img::compressionPngForMagick('convert', $oriFile, $toFile2);
            Img::png2Webp('cwebp', $toFile2, $toFile2 . '.webp');
            break;
    }
}*/

// 正常流程
$arr = [
    '1.bmp',
    '1.gif',
    '1.jpeg',
    '1.jpg',
    '1.png',
    '2.gif',
    '2.jpg',
    '2.png',
    '3.jpg',
    '3.png',
];

function encrypt($content, $key, $iv)
{
    $encKey = hash('MD5', $key, true);
    $encIv = hash('MD5', $iv, true);
    return base64_encode(openssl_encrypt($content, 'AES-128-CBC', $encKey, OPENSSL_RAW_DATA, $encIv));
}
$aes = new Aes('****************', '################');
$magick = 'convert';
$cwebp = 'cwebp';
$gif2webp = 'gif2webp';
foreach ($arr as $k=>$r) {
    $file = './cccc/' . $r;
    $type = Img::getType($file);
    $tmp = './uploads/tmp/%s.%s';
    $tmp1 = './uploads/tmp/%s.%s.%s';
    switch ($type) {
        case 'jpg':
            $toFile = sprintf($tmp, $k, 'jpg');
            $toFile2 = sprintf($tmp1, $k, 'jpg', 'webp');
            Img::compressionJpgForMagick($magick, $file, $toFile);
            Img::jpg2Webp($cwebp, $toFile, $toFile2);
            $base641 = $aes->encrypt(base64_encode(file_get_contents($toFile)));
            $tf = './uploads/image/jpg/' . date('Ymd') . '/' . md5($toFile);
            $jpg = $tf . '_jpg';
            $webp = $tf . '_webp';
            file_put_contents($jpg, $base641);
            $base642 = $aes->encrypt(base64_encode(file_get_contents($toFile2)));
            file_put_contents($webp, $base642);
            break;
        case 'jpeg':
            $toFile = sprintf($tmp, $k, 'jpg');
            $toFile2 = sprintf($tmp1, $k, 'jpg', 'webp');
            Img::compressionJpegForMagick($magick, $file, $toFile);
            Img::jpg2Webp($cwebp, $toFile, $toFile2);
            $base641 = $aes->encrypt(base64_encode(file_get_contents($toFile)));
            $tf = './uploads/image/jpg/' . date('Ymd') . '/' . md5($toFile);
            $jpg = $tf . '_jpg';
            $webp = $tf . '_webp';
            file_put_contents($jpg, $base641);
            $base642 = $aes->encrypt(base64_encode(file_get_contents($toFile2)));
            file_put_contents($webp, $base642);
            break;
        case 'bmp':
            $toFile = sprintf($tmp, $k, 'jpg');
            $toFile2 = sprintf($tmp1, $k, 'jpg', 'webp');
            Img::compressionBmpForMagick($magick, $file, $toFile);
            Img::jpg2Webp($cwebp, $toFile, $toFile2);
            $base641 = $aes->encrypt(base64_encode(file_get_contents($toFile)));
            $tf = './uploads/image/jpg/' . date('Ymd') . '/' . md5($toFile);
            $jpg = $tf . '_jpg';
            $webp = $tf . '_webp';
            file_put_contents($jpg, $base641);
            $base642 = $aes->encrypt(base64_encode(file_get_contents($toFile2)));
            file_put_contents($webp, $base642);
            break;
        case 'gif':
            $toFile = sprintf($tmp, $k, 'gif');
            $toFile2 = sprintf($tmp1, $k, 'gif', 'webp');
            Img::compressionGifForMagick($magick, $file, $toFile);
            Img::gif2Webp($gif2webp, $toFile, $toFile2);
            $base641 = $aes->encrypt(base64_encode(file_get_contents($toFile)));
            $tf = './uploads/image/gif/' . date('Ymd') . '/' . md5($toFile);
            $gif = $tf . '_gif';
            $webp = $tf . '_webp';
            file_put_contents($gif, $base641);
            $base642 = $aes->encrypt(base64_encode(file_get_contents($toFile2)));
            file_put_contents($webp, $base642);
            break;
        case 'png':
            $toFile = sprintf($tmp, $k, 'png');
            $toFile2 = sprintf($tmp1, $k, 'png', 'webp');
            Img::compressionPngForMagick($magick, $file, $toFile);
            Img::png2Webp($cwebp, $toFile, $toFile2);
            $base641 = $aes->encrypt(base64_encode(file_get_contents($toFile)));
            $tf = './uploads/image/png/' . date('Ymd') . '/' . md5($toFile);
            $jpg = $tf . '_png';
            $webp = $tf . '_webp';
            file_put_contents($jpg, $base641);
            $base642 = $aes->encrypt(base64_encode(file_get_contents($toFile2)));
            file_put_contents($webp, $base642);
            break;
    }
}